as Dr. George Wainright
as Aaron King - Art
as Reginald Dunstan
as Rolf Rutherford
as Jack Livingston
as Douglas Ferguson
as Capt. James Morrison
as Dave Langdon
as Claude Roberts
as Dr. Niblock (as Jack Livingstone)
as Randolph Shaw
as Sid Wilson
as Charles Lunkin
as Stephen Pachmann (as Jack Livingstone)
as Dr. Howard
as Jim Gordon
as Captain Drake
as Patrick McCree
as Brian Trelawney
